Covered box.



H. B. SMITH.

COVERED BOX.

APPLICATION FILED MAY 41 I915- Patented Apr. 29,1919.

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Specification of Letters Patent.

Patented Apr. 29, 1919.

Application filed Kay 4, 1915. Serial No. 25,678.

To all whom it may concern:

Be it known that I, HARRY B. SMI'1\H, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented new and useful Improvements in, Covered Boxes, of which the following is a specification.

This invention relates to permanently set up covered boxes and particularly to covered box shells such as may. telescope together to form a complete box or such as may be used with a lid to form a complete box.

Such a permanently set up box shell is usually formed of a blank of boxboard or cardboard which has integral wings or flaps which are folded up and secured at their corners to hold them ,in a fixed relation, that is, to hold the parts permanently in box form or. shell form.- In order to do this, it is a common practice to stay the cornersof the box with wire or adhesively applied strips. A ty e of box has beenproduced in which the board blank is provided'with end laps which come against each end wing of the blank when folded up into the shell form and form reinforcements for the end Walls and corners of the shell. Theseend laps were always, prior to my invention attached. to ether and held in the set-up condition y staples or eyelets because on account of the resiliency of the material the blank tends to move its flaps back to their, normal flattened condition. In another type of box these end laps were held in; place by means of strips secured to the inner side of the end wall extending over the exposed edge of the end wall and covering the end laps on the outside of the end wall. This adhesive strip, of course, held the end laps against the end wings of the blank which formed the shell, but in every case, so far as I am aware, when the box had end laps in addition to end wings forming a. box with mutiply ends, the plles at such ends have been secured together by separate fastening means of some kind, which fastening means served to hold the shell in its set-up condition.

After the box shell was formed or feetup, constructed in any of the ways suggested, the box was then completed by covering itw ith a wrapper.

The staying of the corners or the securing of the end laps before coveringthe box shell entails a distinct operation which materially increases the cost of a complete covered box shell, and it is this additional operation I propose to eliminate by my improved construction.

A principal object of the. resent inven tion is to produce a non-stay permanently set up covered box shell which will be strong enough at its corners to serve the purposes of a stayed corner box, but which is of a construotionjsuch that the wrapper or covering of the shell performs the functlon of permanently holding the folded up wings or flaps and the endlaps of the board blank in a set-up condition, or in fixed relation with respect to each other and with respect to the body portion of the blank of which they form an integral part.

More specifically, the object of the inven'- tion is to produce a strong and serviceable covered box having reinforced or multiply end walls which can be constructed and maintained in its set-up condition without necessitating the operation of staying the corners .'or of securing the end laps by a distinct operation, or in other words, proviiclle for assembling the box blank and coveri wrapper in superposed relation in a non set-up condition and thereafter folding into complete box form, whereby the wrapper constitutes the sole means for holding the side wings andend laps of the shell blank in fixed relation.

Further objects of the invention will appear more fully hereinafter.

The invention consists in the general com-v bination of parts and in those details hereinafter described, an of whichoontribute to produce an eflicient covered box shell.

A preferred embodiment of my invention? Fi 4'is a pers ective of a completely cov-' ered ox shell em .dying my invention.

Fig. 5 is a perspective similar to Fig. 3

- integral side wings 11 and integral; end

wings12. These wings or flaps are intended to fold up on the boundary lines- 13 and 11 of thebody portion 10. in such a.way:th1at the'blank will assume an open box form or shell, form such as.illustrated in Fig. 3 inwhich the body portion 10 formsthe bottom 10 ofthe box, and the end wings 12 become parts ofthe endwalls 12? of-zthebox. The blank -isalso preferably provided with end laps-1'5 whiclnif desired, may be extensions 1 of; the .s ide=wings' l1 and arrangedvto fold upon the side wingson the line-16 which are preferably extensionsof the lines -'l4 'which form theboundaries of the. body portion-10. .In, folding up the blank into-box form or shell form, as; will presently-appear theseend 'laps .15 are preferably inf'olded .sothat Y theywill overlie the outer ,faces'of a pair ofqopposite wings, for ;example the endwings 12, andgform the-'outerpar'ts-or reinforcements 15 of the multiply end walls. It-; sl oul' d gbe understood that the fundamental purposeof. these end laps j15 .-iS- to reinforce the corners of the box around which they are foldedand to obviatethe necessity for staying the corners. If desired, however, the end laps 15 may be of sufiieient length to enabletheined'ges 17 in the blank to meet at the point 17 in the box shell. Of course, when the board blank is folded up into shell form, all the wings or laps-are disposed in planes at right angles to the plane of the body portion 10, but they simply form .a box shell with unstay'ed or unfastened corners,- and if the partswere not held in'this relation, the shell would immediately open and tend to assume again the flat' blank form illustrated in'Fig. l. E In other words, an end wing 12 and-its adjacent end laps 15, constitute a two-ply or multiple-ply ,end wall when the blank is folded, the plies being in facial contact but unsecured to each other, acondition which permits the pliesto move relative to each other. However, in order to prevent this,'I cover the shell while in this unstayed form with a wrapper 18. This wrapper may'be either a tight or adhesive wrapper or a loose wrapper. By way of example, I'haveillustrated in Fig. 3 a tight wrapper partly applied to the shell. A preferred form for-"this wrapper is to produce it from a one-piece In the wrapper blank, however, the side wings 20 have extensions .22 at their ends which are tofform corner laps in covering the shell, and all of the wings 20 and 21 are preferably-provided with marginal edges 23 intended to fold on the corresponding wing portions 21 on the lines 24. This wrapper is preferably completely. covered on one face witlran adhesive such as paste or mucilage.

The -w'rapper' is applied to the uncovered andrunstayed;b0x shell in the manner indicatedgin-Fig.; 3 ;with the bottom 10 of the box-shell resting on thebody portion 19 of the wrapper blank, or the two blanks assentble'di in superposed-relation. The completely covered and set -up box shell has substantially the. appearance illustrated in Fig. 4, each. of-'-the sidessotthe box shell being adherently-covered by-the-fcorresponding portions Qf-vtl 1 .e-wrapper. The'marginal portions.--23-.'ofthe-wf apper extend over the edgesrof the shell. andtextend into the ill-- terior oftheshell andare adhesively applied along 'thefaeesf of th e side wallsand end walls; as indicated at 23*, see Fig. icLflTllG wrapper then performs the function of permanently -holdingrthe sides and the ends of the shell; in-j'a fixed relation with respect to the body-portion of the blank which then forms; the bottom- 10"; of the shell, or in other words, maintains the .box blank in its setup condition. At the sam'etime this coveringor wrapper-performs the regular.funo-' tion of a cover or wrapper and also serves tomaintain the infolded end laps 15 fiat against the outer faces of the end wings as12.-"=

It isevident-that a covered box shell constructed as-descri bed will have strong-corners and ends giving substantially the effect of a stayed corner box without necessitating a separate operation of staying the corners and without: necessitating anyseparate operation of fastening the end laps in position, thus 'inateriallyreducing-the'cost of manufaeture' of the boxes and simplifying the setting-up? operation? since the folding up and" covering operations are carried on whilethe blank and its wrapper are in assembled relation and unstayed. In this form ofbox shell, it should be understoodthat the wrapper preferably adheres at all points to the exterior ofthe-shelL- My invention may be practiced with different types of wrappers, for example, I may produce a loose Wrapped box shell embodying my invention. Such a shell is illusbut is formed so that after the sides of thewrapper25 are applied to the side walls 26 of the shell, the ends of the wrapper may be folded in to form gusset folds 27 on the end walls 28 of the shell. Fig. 5 illustrates one manner in which these gusset folds may be formed by producing a crease or edge near each corner of the'box, as indicated at 29, so that a doubled flap 30 ma be formed at the end of the wrapper. lhese doubled flaps are then folded up against the end walls of the box and their margins 31 which are adhesive are folded into the interior of the box and secured to the inner faces of the end walls, as indicated at 32, and so that they adhere tothe end walls. The mar s 33 of the wrapper at the side are also a hesive on their inner faces so that when they are folded into the interior of the box, they will also adhere as at 33 to the inner faces of the end walls and side walls, see'Fig. 6. In a box shell of this form, of course, the

\ Wra per is loose at all exterior 1pgints of the shel but by reason of the attac ent on the points 32 and 33 the wrapper holds the walls of the shell in a permanently fixed relation with respect to the bottom wall 34,

or in other words, maintains the shell in a set-up conditio While I have referred to the walls 10 and 34 of the two shells as bottom walls, of

course, this is merely for convenience, and, if desired, these walls may be considered the top walls of the shell or box. If it is desired to form a complete box from this box shell, two such box shells may be produced of slightly different dimensions and telescoped together; or a box lid of any desired form may be provided and suitably attached to the covered box shell;

It is understood that the embodiment of the invention set forth herein is only one of the many embodiments or forms the invention may take, and I do not wish to be limited in the practice of the invention nor in my claims to the particular embodiment set forth.

What I claim is:

1. As a new article of manufacture, 9. ermanently set up non-stayed covered ox shell formed from a foldable one-piece board blank and a covering wrapper, said blank having side and end Wings, the side wings having end laps,the said blank and wrapper being assembled in superposed relation in a non set-u condition and thereafter folded into box cm with marginal portions of the wrapper infolded over the edges of and adhesively attached to the inner faces of the side and end walls of the box, whereby the wrapper constitutes the sole means for permanently holding the side wings and end laps of the shell in fixed relation.

. 2. As a new article of manufacture, a ormanently setup non-stayed covered EWX shell formed from a foldable oneiece board blank and an adhesively coate coverin wrapper, said blank having side and en wings, and the side wings having end la s, the said blank and wrapper being assemb ed and adhesively attached together in super posed relation in a non set-up condition and thereafter folded into box form with marginal portions of the wrapper infolded over the edges of' and adhesively attached to the inner faces of the side and end walls of the box, whereby the wrap er constitutes thesole means for ermanent y holdin the side wings and end aps of the shell in ed relation.

g In testimony whereofI have hereunto set my hand in presence of two subscribing witnesses. 4

HARRY B. SMITH. Witnesses:

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